Rotary printing press



H. M. BARBER ROTARY PRINTING PRESS Oct. 27, 1936.

2 Sheets-Sheet 1 Filed Feb. 16, 1935 INVENTOR.

ATTORNEYS Patented Oct. 27, 1936 UNITED STATES PATENT- OFFICE- 2,058,759 ROTARY PRINTING rnsss Howard M. Barber, Pawcatuck, Conn, assignor to C. B. Cottreli & Sons Company, Westerly,

R. 1., a corporation of Delaware Application February 16, 1935, SerialNo. 6,804

Claims. (ill. 101-453) In rotary intaglio printing presses the print- The removable form cylinder i of the printing ing surface of the form cylinder has a very limited press has its shaft 2 rotatably mounted in the life and it is therefore necessary to remove and press side frames 3, for endwise movement. replace the form cylinder frequently. This opera- Roller bearing units l are provided for the form 5 tion requires a considerable amount of time and cylinder shaft 2 beyond the ends of the form 5 also requires the disconnection and reconnection cylinder, which roller bearing units may be recf some of the driving gears and the removal and moved from the shaft by an endwise movement replacement thereof. when the shaft is removed from the press side In rotary intaglio printing presses it is also necframes. v

essary to shift the form cylinder endwise to bring Each roller bearing unit is removably housed 10 the form into proper register. partly in the semi-cylindrical end 5* of a recess 5 One object of my invention is to provide novel in the side frame and partly in the semi-cylindrimeans whereby the form cylinder and its shaft cal recess 6? in the removable locking member 6. may be easily removed from and replaced in the Side plates l secured to the side frame in alinepress frame without disturbing the drive therefor. ment with the side plates 1 of the removable 15 Another object is to provide simple and effective locking member 6 serve to prevent endwise movemeans for imparting an endwise movement to ment-of. the roller bearing unit i when in its the form cylinder to bring it into proper register. operative position.

My invention generally comprises removable Themeans for securing the removable locking m locking members for the form cylinder shaft, and member 6 in position comprises a swinging screwa shaft extension removably coupled to-one end bolt 8 pivoted to the side frame it in a recess 9 of the. form cylinder shaft whereby the cylinder opening into the recess 5; This screw bolt t is and its shaft may be easily removed from and refitted to swing upwardly into position over a seat placed in the frame by uncoupling the shaft from it provided on the removable locking member 6.

go the shaft extension and removing the shaft lock- A nut ii on' the bolt 8 serves to lock the bolt to ing members. the removable locking member.

My invention also comprises manually operated Means are provided for positively moving the means connected to the shaft extension for adlocking member 6 from its operative position when lusting the form cylinder endwise into proper it is desired to remove the locking member from .30 register. the side frame 3. This means comprises a lug it A practical" embodiment of my invention is on the pivoted head of the swinging bolt ii, which represented in the accompanying drawings, in lug is arranged to engage an abutment ii on the which removable locking member 6 after the nut has Fig. 1 represents a detail top plan view of a been unscrewed and as the bolt is being swung rotary intaglio printing press at the side from downwardly to its released position. v which the form cylinder is driven; To facilitate the entire removal of the locking Fig. 2 represents a detail front view; member E from itsrecess 5, the locking member Fig. firepresents a vertical transverse section may be provided with hand holesit in its side taken in the planeof the line Hi -III of Fig. 2, plates i looking in the direction of the arrows; The drive for the form cylinder includes a shaft 40 Fig. 4 represents a detail horizontal section extension it which is mounted for endwise movetaken in the plane of the line IV-IV of Fig. 2, ment in roller bearings it, ll carried by the side looking in the direction of the arrows; walls of a gear housing it. This shaft extension Fig. 5 represents a vertical section taken in the It is removably coupled to one end of the form as plane of the line if-V of Fig. 1, looking in the cylinder shaft 2 as by providing a coupling comdirection of the arrows; prising a half socket it forming a part of the Fig. 6 represents a vertical transverse section shaft extension. and a half socket 2d hinged to taken in the plane of the line VI-VI of Fig. 5, the half socket Ila. These two half sockets are looking in the direction of the arrows; arranged in position to receive and clamp between Fig.7 represents adetailvertical transverse secthem the reduced end of the said form cylinder 50 tion taken in the plane of the line -VII--VII of shaft 2.- Two swinging bolt M are pivoted in the Fig. 5, looking in the direction of the arrows; and half socket it in position to swing into slots 22.

Fig. 8 represents a detail side view showing the in the half socket Ell, nuts 23 being provided for a form cylinder, the form cylinder shaft and its engaging shoulders it on the said half socket 2|].

til roller bearings removed from the printing press. The shaftextension i5 and thereby the form 5.5 I

cylinder shaft 2, when coupled thereto, may be driven through the following gearing located in the housing I8:

A drive shaft 25 has a bevel gear 26 which meshes with a bevel gear 21 fast on a shaft 28 rotatably mounted in roller bearings 29, 30 in the sides of the housing I8. This shaft 28 is provided with a gear 3| which meshes with a gear 32 carried by a shaft 33 mounted in suitable roller bearings 34, 35 in the sides of the housing I8. The gear 32 on the. shaft 33 meshes with a gear 36 fast on the shaft extension I5.

Means on the opposite side of the press is connected to the shaft extension I5 for moving the form cylinder I endwise into proper register either while the press is running or is at rest, which means in the present instance is constructed, arranged and operated as follows:

A roller bearing 31 is interposed between the shaft extension I5 and a ring 38, which ring is pivoted to the depending yoke arms 39, 40 of a rock lever pivoted inthe housing by a rock shaft M. The lower ends of these yoke arms 39, 40 carry a yoke 42 in which a nut 43 is mounted with a slight play. A screw shaft 44 has its screw thread end engaged with the nut 43, which screw shaft is suitably mounted to rotate in the inner wall of the gear housing I8 and the outer wall of a gear casing 45, in which casing the said screw shaft is operatively connected through a train of gears 46, 41, 48 with the adjacent end of a cross shaft 49 leading to the opposite side of the press where the cross shaft 49 is provided with a hand wheel 50 for manipulating it.

From the above description it will be seen that when it is desired to remove the form cylinder for replacement or for any other reason, the looking members 6 are unlocked and removed from the press frame. Also, the half socket of the coupling between the form cylinder shaft 2 and shaft extension I5 is unlocked and swung out of the way. This will permit the free removal of the form cylinder, its shaft and the roller bearings carried by the shaft from the press frame, without disturbing in any way the form cylinder driving mechanism. It will beur'ici-stood that the roller bearings 4 may be removed from the form cylinder shaft and replaced on the shaft of the form cylinder which is to be inserted into the printing press.

It will furthermore be seen that I have provided a novel manually operated means connected to the shaft extension for easily and accurately adjusting the position of the form cylinder endwise for proper register when the form cylinder shaft 2 and the shaft extension are coupled together. This endwise adjustment of the form cylinder may be accomplished whether the press be running or at rest.

It is evident that various changes may be resorted to in the construction, form and arrangement of the several parts without departing from the spirit and scope of my invention, and hence I do not intend to be limited to the particular embodiment herein shown and described, but

What'I claim is:

1. In a rotary printing press, a frame, a form cylinder, a form cylinder shaft, a shaft extension, 9. drive located at one side of the frame and connected to the shaft extension, and manually operated means located at the other side of the frame and connected to the shaft extension for importing endwise movement to the form cylinder.

2. In a rotary printing press, a frame, a form cylinder, a form cylinder shaft, a shaft extension, a drive connected to the shaft extension, means for removably coupling the shaft to the shaft extension, and manually operated means connected to the shaft extension for imparting endwise movement to the form cylinder.

3. In a rotary printing press, a frame, a form cylinder, a form cylinder shaft, a shaft extension, a drive located at one side of the frame and connected to the shaft extension, means for removably coupling the shaft to the shaft extension, and manually operated means located at the other side of the frameand connected to the shaft extension for imparting endwise movement to the form cylinder.

4. In a rotary printing press, a frame, a form cylinder, a form cylinder shaft, a shaft extension, a drive connected to the shaft extension, means for removably coupling the shaft to the shaft extension, means for releasably mounting the form cylinder shaft in the frame, and manually operated means connected to the shaft extension for imparting endwise movement to the form cylinder.

5. In a rotary printing press, a frame, a form cylinder, a form cylinder shaft, a shaft extension, a drive located at one side of the frame and connected to the shaft extension, means forremovably coupling the shaft to the shaft extension, means for releasably mounting the shaft in the frame, and manually operated means located at the other side of the frame and connected to the shaft extension for imparting endwise movement to the form cylinder.

HOWARD M. BARBER 

